diff --git a/themes/original/css/theme_print.css.php b/themes/original/css/theme_print.css.php
index 0804342f0b..4cf8e338d0 100644
--- a/themes/original/css/theme_print.css.php
+++ b/themes/original/css/theme_print.css.php
@@ -36,3 +36,7 @@ th {
     font-weight:       bold;
     background-color:  #e5e5e5;
 }
+
+.hide {
+    display: none;
+}
diff --git a/themes/pmahomme/css/theme_print.css.php b/themes/pmahomme/css/theme_print.css.php
index ad5484ae16..428ec8d9f6 100644
--- a/themes/pmahomme/css/theme_print.css.php
+++ b/themes/pmahomme/css/theme_print.css.php
@@ -36,3 +36,7 @@ th {
     font-weight:       bold;
     background-color:  #e5e5e5;
 }
+
+.hide {
+    display: none;
+}